Joni Mitchell penned countless love songs in a Rock and Roll Hall of Fame career that has spanned nearly 50 years, but the Canadian singer/songwriter faced a daunting task when she challenged herself to condense her 17 albums into a single disc of her best songs about love and heartbreak. After spending 18 months on the project, Mitchell ended up with Love Has Many Faces: A Quartet, a Ballet, Waiting to Be Danced, a career-spanning four-disc collection focusing on Mitchell's most romantic works.